ABB SNAT-0713 SC

1. Overview

The ABB SNAT-0713 SCL is a high-current electronic load device designed for industrial automation, widely used in fuel cell R&D and testing. It supports multiple operating modes, including Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP), with configurable under-voltage and overcurrent protection values. Additionally, it enables combined modes such as CC+CV and CR+CC+CV. Equipped with MPP tracking, energy storage discharge testing, and internal resistance measurement, this device is ideal for high-precision, high-stability testing scenarios.

2. Specifications

• Input resistance: >50 kΩ (when load input is off).
• Input power: Refer to model overview.
• Parallel operation: Up to 5 units can be connected for master-slave operation.
• Max input voltage: Vmax.
• Min input voltage: Vmin.
• I/O voltage: Refer to model overview.
• Vin-PE (Negative load input – PE): Max 60 V.
• Vin+PE (Positive load input – PE): Max 60 V.
• Rated power: -1.2 %/°C (at Ta=21°C).
• Derating: -1.2 %/°C (at Ta=21°C).
• Ambient temperature: 23±5°C.
• Max current: 1200 A (SCL-std configuration).
• Max voltage: 40 V (SCL604 model).
• Max power: 600 W (SCL604 model).
• Rise/Fall time: 2/10/100 ms (selectable).
• Input capacitance: 16 μF (SCL604 model).
• System AC voltage: 1/N/PE AC 230V 50…60Hz.
• System power consumption: 70 VA.
• System noise: 67 dB(A).
• Weight: 16 kg (SCL604 model).
• Mounting dimensions: 19″, 2U/SCL_M1.

3. Key Features

• Load waveform curves: In CC/CV/CR/CP modes, the List function generates curves with up to 300 segments, each with customizable sampling time.
• Rectangular function: Simplifies rectangular waveform generation via absolute time and amplitude inputs.
• PWM function: Allows manual adjustment of frequency and duty cycle for two amplitude levels.
• Waveform modulator: In CC/CV mode, superimposes sine, square, triangular, or arbitrary waveforms onto a base signal (constant=1, setpoint=1024 memory).
• MPP tracking: Combines scan and track sub-functions at adjustable intervals to plot V/I and V/P curves, displayed on the user interface.
• Energy storage discharge test: Supports CC+CV discharge, maintaining voltage until a defined minimum current is reached.
• Internal resistance test: Measures DC resistance of connected DUTs (e.g., batteries) per standards like DIN EN 61951 and DIN EN 61960.
• Data logging: Synchronously records voltage/current at set intervals (up to 40,000 data points).
• Trigger modes: External, common, manual, voltage, or current triggers.
• Watchdog: Automatically disconnects load input if no reset occurs after a delay during digital remote operation.
• Non-volatile memory: Stores active settings for quick reloading.

4. Structure & Components

• Mechanical design: Standard 19-inch rack-mount (2U height); desktop or cabinet installation (no additional kits required).
• Load terminals: Flat solid copper bars with M12 screws (max 2 cable lugs per side, 150 mm² contact area each).
• Parallel connectors: Options include SCL08 (2 units), SCL09 (3 units), SCL10 (4 units), and SCL11 (5 units).
• I/O ports: Standard analog/digital interfaces for control, status signals, and triggers.
• Isolated I/O (SCL06 option): Current-isolated analog ports prevent ground loops, enabling bipolar voltage testing.
• Control board: SNAT603CNT 61007041 supports digital I/O (15V DC–60V DC, 120 VAC/125V DC, 240 VAC).

5. Applications

• Fuel cell testing: High-current evaluation for fuel cells.
• Industrial automation: Power supply control for factory automation, machinery, and process control systems.
• Energy storage testing: Discharge functionality for ESS performance validation.
• Battery testing: Complies with battery/accumulator standards.
• Smart grids: Monitors and controls power equipment.

6. Installation & Maintenance

• Installation: Tool-free 19-inch rack or bolt mounting.
• Maintenance: Includes factory calibration certificate (FCC) per DIN EN ISO 9001; free recalibration during warranty (if registered).
• Connectors: Parallel kits (SCL08–SCL11) for multi-unit setups.
• Data interfaces: Enables seamless data transfer/storage.
• Triggers: External/common/manual/voltage/current triggers for automated workflows.